Different applications require a pump, among all the options peristaltic and syringe pumps, are the most suitable. However, selection of the best is always a disjunctive. In general terms, laboratory and industrial process use peristaltic pumps. A user needs to know more about the systems and proper comparison of these technologies. In some cases is difficult to understand what are the fundamental differences between the pumps that a scientist can find in the laboratory. In this review, we address the main characteristics, pros, and cons of peristaltic and syringe pump.
What Is A Peristaltic Pump?
Peristaltic pumps squeeze plastic tubing through rollers in rotatory movement. Perhaps, are the most affordable option and reliable, especially for large rates and volumes. One significant advantage is that the system never touches the sample. However, the tubing has to be replaced from time to time. Peristaltic pumps are not the most reliable option for slow rates and small volumes due to the pauses in the flow; this is a disadvantage that generates pulses which may affect the operation of high-precision applications. The study of microfluidics, for example, is not recommended through peristaltic pumps.
What Is A Syringe Pump?
Syringe pumps are classical syringe holders, with a motor controlled plate and stepper motors that allow tow work minimal rates as one microliter/min. The handling of damaging liquids as inks or corrosives is possible due to the new syringe bodies. Additionally, this allows the application of high viscosity liquids and high pressure.
Even when peristaltic pumps are inexpensive devices compare to syringe pumps, the applications for both pumps are entirely different, higher flow control is provided by syringe pumps and the applications that require this exceptional tune flow are mainly: fluid batteries, microfluidic reactors, micro and nanomanufacturing among others. Furthermore, classical HPLC and GC/MS equipment can implement syringe pumps; on the contrary, peristaltic pumps are more reliable for high volume applications. Syringe pumps are the most reliable option for Biological and biochemical studies, biotechnological areas require complex operations as gradients for drugs and therapeutic interventions.